velarise

/V EH0 L R AH0 S/
verb
  1. 1

    To raise the back of the tongue toward the velum while articulating another consonant, such as the l of English pool.

  2. 2

    To replace a (usually more front) consonant with a velar.

    โ€œIn several dialects of Central German, the cluster -nd- has been velarized to -ng-.โ€

Source: https://en.wiktionary.org/wiki/velarise, https://en.wiktionary.org/wiki/velarize